Fruitland RCF 250, Эксплуатация и обслуживание

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Fruitland Manufacturing • Toll Free: 1-800-663-9003 • www.fruitlandmanufacturing.com
Vane wear (see diagram above) should not exceed 1/4” in pump models 172, 250, 344, 370,
500 and 870. Fruitland pumps have at least two orifices for checking vane wear, some models
have four. These orifices are located on the housing at both ends of the vacuum pump, and
are marked with red. A 3/16” diameter test rod is supplied with the pump. We recommend
checking the vanes on both ends, as they can wear in a tapered fashion because of excess heat
or contamination.
To measure vane wear, remove the plug from the office and insert the test rod until the rod
touches the rotor. Mark the rod with pencil as shown in diagram (fig.1). Turn the pump shaft
until the rod drops into the vane slot in the rotor. Mark with pencil again (fig.2). Distance
between the pencil marks is the amount of wear you have on the vane. If the vane is tapered
from end to end, take the largest measurement as the amount the vane is worn.
Replace the complete set of vanes when worn to the maximum recommended amount for
your pump model. Failure to replace the vanes at the recommended time can result in pump
failure. Vane wear and subsequent damage are not covered under warranty. Instructions for
replacing vanes are given on page 26.
The Recommended first check of vane wear is after approximately 10 hours of operation; next
check after 50 hours of operation; thereafter, check every 200 hours or once a month if no
significant wear has been detected on the 2 initial checks.
VANE WEAR MEASUREMENT
Note: Be extra careful not to bend the checking rod.